On Thu, Mar 21, 2019 at 1:14 PM Meier Quintin wrote:
>
> Dear Daniel,
> Thanks a lot for the help. I got it to work by adding a transientterm().
>
> If I try to use your second trick though:
>
> eq = (DiffusionTerm(coeff=(1.0), var=phi) - numerix.sin(phi) + phi *
>
munity,
I’m new to FiPy, so forgive me if this is a trivial question.
I’m trying to find the kink solution to the (static) sine-gordon equation using
this simply piece of code.
import numpy as np
from fipy import *
nx = 1
dx = 0.01
mesh = Grid1D(nx=nx,dx=dx)
phi = CellVariable(mesh=mesh, na
On Thu, Mar 21, 2019 at 11:48 AM Daniel Wheeler
wrote:
>
> with a transient term in the equation. For small phi, this should
> never be negative, since phi should only grow, but for delta_t > 1
That's wrong, phi should shrink, but not go negative.
--
Daniel Wheeler
tion.
> I’m trying to find the kink solution to the (static) sine-gordon equation
> using this simply piece of code.
>
> import numpy as np
> from fipy import *
> nx = 1
> dx = 0.01
> mesh = Grid1D(nx=nx,dx=dx)
> phi = CellVariable(mesh=mesh, name=“Phi")
>
Dear fipy community,
I’m new to FiPy, so forgive me if this is a trivial question.
I’m trying to find the kink solution to the (static) sine-gordon equation using
this simply piece of code.
import numpy as np
from fipy import *
nx = 1
dx = 0.01
mesh = Grid1D(nx=nx,dx=dx)
phi = CellVariable
